The paper describes an image converter streak camera system developed in China. It consists of a streak tube, an intensifier, sweep and synchronizing circuits, a film recorder and a real-time readout system. The streak tube has a spherical photocathode and a spherical extraction mesh to correct the transit-time distortion. The measured highest time resolution is 2.5 ps. The real-time readout system with two windows consists of a SIT TV camera, a digitizing circuit, a CPU, a monitor and hardcopy devices.